Improvement in turn-sheet folding-machines



2 Sheets-Sheet 1. W. MENDHAM & O. CHAMBERS, Jr.

Turn-Sheet Folding-Machine.

No. 222,523. Patented Dec. 9, I879.

GRAFHER. WASHINGTON D C 2 Sheets-Sheet 2.

W. MENDHWAM & G. GHAMBERS, Jr. Turn-Sheet Folding-Machine.

Patented Dec. 9,187.9.

W il W Maw w m1;

RAPHER. WASRKNGTON UNIT fS TATns PATENT OFFICE.

YWILLIAM NDHAM AND CYRUS CHAMBERS, JB.,.OF PHILADELPHIA,

PENNSYLVANIA; SAID MENDHAM ASSIGNOR TO SAID CHAMBERS.

l-llllP RQvEM ENTlN TURN-SHEET FOLDING-MACHINES.

Specifi'cation forming oflhetters PatentNo. 222,523, dated December 9, 1879 application filed May 8, 1839.

j To all whom it may concern; Q *Be it known that we, WILLIAM MENDHAM wand CYRUS CHAMBERS, Jr.,of Philadelphia, in the State of Pennsylvania, have invented an Improvement in Turn-Sheet Folding-Machines; and we do hereby declare the followin g to be a full and correct description of the v same, reference being had to the accompanying drawings, in which- V Figure 1 is a plan or top view of our improved machine. Fig. 2 is a transverse ver- .tical section on line a: ac of Fig. 1. Fig. 3 is a vertical section on line y y of Fig. 1, on an enlarged scale, showing the tapes arranged for turning the sheet overbefore receiving the third fold Fig. 4 is a; similar section on the same line, withjthe parts arranged for making the fold without turning the sheet over. I 1 The same letter indicates the same part in all the figures where it occurs.

Our improvement consists in providing the ordinary sixteen-page Chambers book-folder with a device by -which, when desired, the I twice-folded sheet may be turned over before receiving the third fold, so thatsaid fold shall be given in the reverse way from that given in the ordinary machine; a j

. When a sheet of eight pages isto be folded three tirnes, and so that the titleisto be on 3 the outside, where it can beseen, it. is necessarythatthe last fold sh onld bemade in the reverse way from that used'infolding a reguat sixteenpage sheet; To accomplish this the sheet, after beingtwice folded,requires to be turned over before receivingthe last fold, in order that the blade may strike it between the folding rollers upon the opposite side. I j To enable the machine to perform this operation is the object of our improvement.

The general construction of the machine is that of the well-knownOhambers folders, and needs no particular description. The. sheets are fed, folded, and'delivered' in the ordinary .4- way. i K

To the original machine we have added the roller A, carrier-roller G, small rollers D, and movable stops B E, attached to rock-shafts M N, and operated by levers K L, all as shown in the drawings, and most distinctly in Figs. 3 and 4. t

A is the roller, around and over which the twice-folded sheet iscarried in the act of turnmg.

O is the carrier-roller, ,which, by friction, carries the sheet over roller A.

B is the last stop, which, in the ordinary order of folding, is in the position shown in Fig. 4, and arrests the folded edge of the sheet prior to the reception of the thirdfold, but can, by means of lever L, attached to the end of rock-shaft N, to which stop B is attached, be turned down out of the way of the sheet, into the position shown in Fig. 3, when necessary.

E is a movable stop, used to arrest the sheet after it has been turned over, but which can be turned down out of the path of the sheet, when required, by means of lever K on the end of the rock-shaft M, to which the stop is attached. When turned down it occupies the position shown in Fig. 4.

The tapes t t, for the ordinary folding, have the arrangement ,shown in Fig. 4, passing around rollers F, I, andI, and below roller A. When the machine is used to turn the sheet these tapes have the arrangement shown -in Fig. 3.

The operation of the-machine when used in ordinary folding is illustrated in Fig. 4. The sheet, having passed the rollers G F, receiving its second fold, is carried by the tapes till its folded edge strikes the stop B, which is in the upright position and in the path of the paper.

The stop E, during this operation, is turned down out of the path of the sheet, to give it free passage. When thus arrested, the sheet is'in position tobe driven by knife J between the third pair of folding-rollers to receive its third and last fold.

When it is desired to turn the sheet before receiving the third fold, the tapes are arranged as shown in Fig.3, and the twice-folded sheet, passing from rollers G F, is carried by tapes it up to the top of roller A, and under the carrying-roller O; thence around roller A and over rollers D, till its folded edge comes into contact with stop E, which is in its upright position and in the path of the paper. The

stop B, during this operation, is turned down out of the path of the sheet. When thus ar- 2. A book-foldiilgl maohin e provided with mechanism, as described; fp'rconverting it atm; pleasure from an ordinaryifolder into a turnsheet folder, by which the sheet is turned over before receiving any particular fold of a series, so that said fold shall. be made in the reverse way from that given-byan ordinary machine,

all substantially in the nianner set forth.

The above specification of our said inven- 'tion signed and witnessed, at Philadelphia,

1. In a sixteen-page bookfolding machine,, the device herein described for converting the machine from an ordinary sixteen-page folder to a machine capable of turning the L twicefolded sheet upside down prior to its receiving the third fold, the same consisting of the combination of the tapes 1, rollers A O, and movable stops B E, all arranged and operating substantially as and for the purpose described.

this 11th day of Maroh-,'A. 11 1879.

WILLIAM MENDHAIVL- CYRUS CHAMBERS, JR.

Witnesses:

S. BERNAR CHAMBERS, J. H. CHAMBERS. 

